It was similar to how a decrease in past oxygen content led to the extinction of large animals; the same principle applied here. And the Darkflame Ancient Raven's emergence was likely linked to the appearance of that bizarre flame, as well as the equally peculiar aura of that Secret Realm.
Could that Secret Realm contain some leakage of energy from Ancient Times? Was that why, in that Secret Realm's cavern, one of the Flame-Eating Crows that nested there underwent atavistic evolution to become a Darkflame Ancient Raven?
These were the connections Su Ping had been speculating over these days. Moreover, he was now quite confident in his theory. Otherwise, he wouldn't have advised Ye Zhou to research in this direction.
Su Ping paused for a moment and then continued to ask, "What did that person say?"
"Um..."
Upon mentioning this, Sang Sheng showed a somewhat embarrassed expression in front of Su Ping for the first time.
